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Free Mailer Box Dieline Template

The classic e-commerce mailer box is a roll end front tuck (RETF) design: one piece of corrugated board with a base, a lid hinged on the back wall, a front tuck flap, and side walls that roll over into a double wall with lock tabs that click into slots in the base. This free generator draws that dieline for your inside size, with ears on the back and front walls that are trapped inside the rolled sides. Download SVG or a 100%-scale PDF.

Want it printed?Send this size for a free quote. A packaging specialist replies with pricing and a digital proof on the exact dieline.

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Cut line
Fold / crease
Bleed 0.125 in
Safe zone 0.125 in
Glue area

Ready-made templates

Common mailer box sizes

Inside sizes in inches on E-flute corrugated 1/16 in (1.6 mm). Each file is drawn at actual size with cut, fold, bleed and safe zone layers.

Inside size (L × W × H)	Flat size	Download
6 × 4 × 2 in	15.00 × 14.04 in	SVG · PDF · Quote this size
8 × 6 × 2 in	17.00 × 18.04 in	SVG · PDF · Quote this size
9 × 6 × 3 in	22.00 × 20.84 in	SVG · PDF · Quote this size
10 × 8 × 3 in	23.00 × 24.84 in	SVG · PDF · Quote this size
12 × 9 × 3 in	25.00 × 26.84 in	SVG · PDF · Quote this size
12 × 10 × 4 in	29.00 × 31.64 in	SVG · PDF · Quote this size
14 × 10 × 4 in	31.00 × 31.64 in	SVG · PDF · Quote this size

About this style

Mailer box

Mailer boxes are the standard shipping and subscription box for e-commerce brands because they fold without glue or tape and open like a book. The default board is E-flute corrugated (1/16 in), and the allowances grow with the board thickness you choose.

What the template includes

Cut lines (solid) and fold lines (dashed) on separate layers
A 0.125 in (3.2 mm) bleed outside the cut and a 0.125 in safe zone inside each main panel
Panel labels and a legend with every panel size, the flat size and the board
1 in and 25 mm scale bars, so you can check a print at 100%

How to use a dieline

From template to printed box

Pick the box style. Choose the style and enter the inside length, width and height in inches or millimetres.
Set the board. Choose SBS paperboard, E-flute corrugated or a custom thickness, and adjust the glue and tuck flaps if you need to.
Download the template. Download the dieline as SVG or PDF. Both are drawn at actual size.
Check the scale. Print the PDF at 100% (actual size) and measure the 1 in bar in the legend, then cut and fold a test sample.
Place your artwork. Open the file in Illustrator, Affinity, Inkscape or Canva, keep the dieline on its own layer, extend backgrounds to the bleed line and keep text inside the safe zone.
Send it to print. Ask your printer to confirm the final die line for their board, then send the artwork for a proof.

FAQ

Dieline questions

What does roll end front tuck mean?

Roll end means the side walls fold over on themselves into a double wall. Front tuck means the lid's front flap tucks inside the front wall to close the box.

Does the mailer need glue?

No. The ears on the back and front walls are held between the two layers of each rolled side wall, and two lock tabs on each inner side wall drop into slots in the base.

Can I make it in paperboard instead of corrugated?

You can choose SBS or a custom thickness, but mailers are usually corrugated for shipping strength. The allowances follow the thickness you pick.